Dr. Sharma uses a famous Hindi proverb to explain the deep psychological trauma and resulting behavior of Saturn in the 1st house.
Because Saturn 1 natives experience severe betrayals and hardships early in life, they become hyper-cautious. Like a person burned by hot milk who now blows on cold buttermilk, they trust no one.
This trauma manifests in two ways: either they live their entire life as a bitter, heartbroken victim ("diljala"), or they become so cold and ruthless that they survive by breaking and burning the hearts of others ("dil jala ke jeeta hai"). Their trauma turns them into either the ultimate victim or the ultimate villain.